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MedCell Exam 5 > Male Reproduction > Flashcards

Male Reproduction Flashcards

1
Q

How long does Spermatogenesis take?

A

74 days + 12 days to exterior

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2
Q

Tunica Albuginea is made of what?

A

Dense irregular collagenous connective tissue

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3
Q

What is a thickening of the tunica Albuginea where the epididymis attaches called?

A

Mediastinum testes

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4
Q

What does the Tunica Vasculosa contain?

A

Blood Vessels

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5
Q

What do testicular lobes contain?

A

1-4 seminiferous tubercles

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6
Q

Where are sperm created?

A

in the seminiferous epithelium of seminiferous tubercles

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7
Q

What secrets testosterone? And how is it stored?

A 
Interstitial cells (of Leydig)
Testosterone is released immediately into blood stream (no storage)
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8
Q

What are the 3 layers of seminiferous tubercles?

A 
Tunica propria
-collagen
-myoid cells (contractile)
Basal lamina
Seminiferous Epithelium
-create sperm
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9
Q

Spermatogenic cells begin formation (spermatogenesis) when?

A

during puberty

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10
Q

What is the function of myoid cells?

A

Contractile, squeeze the tube (seminiferous tubercle)

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11
Q

What is the function of the Sertoli cells?

A

Keep developing gametes safe

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12
Q

What are the 2 epithelial compartments of the Sertoli cells? And how are they held together?

A

1) Basal Epithelial compartment
2) Luminal compartment

(ZO) occluding juntions

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13
Q

What does the luminal compartment of Sertoli cells contain?

A

Haploid cells that differ from somatic cells

speratocyte->Early spermatid->Late spermatid->Early spermatozoa

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14
Q

What des the basal compartment of Sertoli cells contain?

A

Spermatogonia

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15
Q

What is the most immature sperm cells, where do they come from, and where are they stored?

A

Spermatogonia
from germ cells from the yolk sac
Stored in the basal epithelial compartment of Sertoli cells

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16
Q

When are spermatogonia first present?

A

At birth, nothing happens until puberty

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17
Q

How are spermatogonia replenished?

A

By Mitosis

18
Q

The morphological transformation of sperm from spermatids is called?

A

Spermiogenesis

19
Q 
#n #d # s/d chromatid chromosomes
Spermatogonia
A

46s (2n 2d)

20
Q 
#n #d # s/d chromatid chromosomes
Primary Spermatocyte
A

46d (2n 4d)

21
Q 
#n #d # s/d chromatid chromosomes
Secondary Spermatocyte
A

23d (1n 2d)

22
Q 
#n #d # s/d chromatid chromosomes
Spermatids
A

23s (1n 1d)

23
Q 
#n #d # s/d chromatid chromosomes
Sperm
A

23s (1n 1d)

24
Q

What organelles do the Interstitial cells of Leydig contain?

Where are they found?

A

smooth ER
Lipid droplets
Mitochondria
Found in loose CT of Tunica Vasculosa

25
Q

What is the function of the seminal vesicle?

A

Makes fluid to nourish sperm (part of semen)

26
Q

What type of cells does the seminal vesicle contain?

A

Smooth muscle

pseudostratified columnar epithelium

27
Q

What two structures make up the intratesticular genital duct?

A

Rete testes

Tubli Recti

28
Q

What makes up the extra testicular genital ducts

A

Efferent ductules
Duct of Epididymis
Ductus Deferens (vas deferens)
Ejaculatory duct

29
Q

What is the function of short nonciliated cells in the efferent ducutle

A

reabsorb extra fluid from sertoli cells

30
Q

Where do sperm become motile?

A

In the duct of epididymis

31
Q

Which part of the extratesticular genital ducts has smooth muscle?

A 
Ductus Defrens (vas Defrens)
3 layers
inner
outer
longitudinal
32
Q

The CT stroma of the prostate is developed from what?

A

the CT capsule

33
Q

What do the Psuedostratified columnar epithelium of the prostate gland secrete?

A

Protein high substance to nourish sperm

34
Q

What are the 3 layers of the compound tubuloalveloar glands of the prostate?
Which zone has most cancer?

A

Mucosal zone
submucosal zone
Peripheral zone= 70% cancer

35
Q

Are concretion (corpora amylacea) in the prostate dangerous? what are they

A

not dangerous

buildup of protein

36
Q

How does benign prostatic hyperplasia (BPH) happen? And what does it result in?

A

Testosterone -> Prostate (stromal Cells)->Dihydroesterone (DHT)-> DHT&Testosterone bind to Nuclear androgen receptors in epithelial cells= growth factor activation
Results in difficulty in urination

37
Q

What is the function of helicine arteries and vascular sinuses in penile erectile tissue

A

Helicine arteries supply blood to fill vascular sinuses during and erection

38
Q

What part of the penile erectile tissue does the urethra pass through?

A

Corpus spongiosum (ventral)

39
Q

What parts of the urethra have transitional epithelium?

A

Prostatic urethra

40
Q

What parts or the urethra contain stratified columnar epithelium?

A

Spongy urethra

Membranous urethra

41
Q

What is the function fo the Glands of Littre, Para-urethral glands, and Bowerman’s glands ofcowper

A

Lubricate urethral lumen

Clear urethra of urine prior to ejaculation

MedCell Exam 5 (9 decks)

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